Ambidextrous thumb safety

• US 8,499,482 B1
• Filed: 06/12/2012
• Issued: 08/06/2013
• Est. Priority Date: 06/12/2012
• Status: Active Grant

• Current Assignee: Kimber IP, LLC
• Original Assignee: Kimber IP, LLC
• Inventors: Di Trolio, Lucio
• Primary Examiner(s): KLEIN, GABRIEL J
• Application Number:
  US13/494,488
• Time in Patent Office: 420 Days
• Field of Search: 42/700.1, 42/700.4, 42/700.5, 42/700.6, 42/700.8, 891/42, 891/48
• US Class Current: 42/70.01
• CPC Class Codes: F41A 17/42 Safeties for locking the breech-block or bolt in a safety position F41A17/32, F41A17/36, F41A17/40 take precedence ; anti-rebound arrangements F41A3/70
• CPC Class Codes: F41A 17/56 Sear safeties, i.e. means for rendering ineffective an intermediate lever transmitting trigger movement to firing pin, hammer, bolt or sear F41A17/02 - F41A17/40 take precedence
• CPC Class Codes: F41A 17/64 Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers F41A17/02 - F41A17/40 take precedence
• CPC Class Codes: F41A 17/74 Hammer safeties, i.e. means for preventing the hammer from hitting the cartridge or the firing pin F41A17/02 - F41A17/40 take precedence
• CPC Class Codes: F41A 35/06 Adaptation of guns to both right and left hand use

Abstract

An ambidextrous safety for a firearm includes a first portion, a second portion and a pivot pin, where each portion has a thumb lever that is rotatable in a frame aperture about the pivot pin having a first end and a second end. The first end is integrally disposed on the first portion and the second end has a first part of a two-part fastener. The second portion has a second part of the two-part fastener. The fastener rigidly secures the first portion to the second portion through the aperture. One part of the fastener has a socket and the other part has a protuberance for receipt in the socket. The protuberance is oblong and tapers inwardly. The socket has a socket aperture having a cutaway, tapering inwardly for receipt of the protuberance. The socket and the protuberance provide an interference fit. The two-part fastener provides retention and minimizes backlash.

Claims

1. A firearm having an ambidextrous safety, comprising:

(a) a firearm frame having a left side, a right side, and a handle portion, said frame having a safety aperture, extending from the left side to the right side;

(b) the safety being rotatably disposed in said safety aperture, said safety comprising a first portion and a second portion and a pivot pin, each of said first portion and said second portion having a thumb lever rotatable relative to the frame about an axis of the pivot pin, said pivot pin disposed perpendicular to a plane of rotation of the thumb levers, said pivot pin having a first end and a second end, said first end integrally disposed on said first portion and said second end having a first part of a two-part fastener, said second portion having a second part of the two-part fastener, said fastener rigidly securing the first portion to the second portion through the aperture;

(c) one of said first part and said second part of said two-part fastener having a socket and the other of said first part and said second part of said two-part fastener having a protuberance for receipt in said socket;

(d) said protuberance extending from one of the thumb levers and being oblong in cross section in the plane of said one of the thumb levers and tapering inwardly away from said one of the thumb levers;

(e) said socket having a socket aperture having a tapered cutaway section, tapering inwardly toward the other one of the thumb levers for receipt of said protuberance;

(f) said socket and said protuberance providing an interference fit;

whereby said socket and said protuberance provide the two-part fastener that provides retention and minimizes backlash of the first portion relative to the second portion.

2. The ambidextrous safety of claim 1, wherein the aperture in the frame is keyed to the protuberance to retain the first and second portions of the safety in the frame.